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Wiring Of Main Power Supply And Equipment Capacity - Mitsubishi Electric PUHY-P200-YREM-A Installationshandbuch

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Unit
Range
IC (Main)
01 to 50
IC (Sub)
01 to 50
Outdoor Unit
51 to 100
M-NET R/C (Main)
101 to 150
M-NET R/C (Sub)
151 to 200
MA R/C
h. The group setting operations among the multiple indoor units is done by the remote controller (RC) after the electrical power has been turned on.
<Permissible Lengths>
1 M-NET Remote controller
Max length via outdoor units: L
+L
1
Max transmission cable length: L
Remote controller cable length: r
If the length exceeds 10 m, use a 1.25 mm
maximum length and overall length.
2 MA Remote controller
Max length via outdoor unit (M-NET cable): L
Max transmission cable length (M-NET cable): L
Remote controller cable length: c

9.4. Wiring of main power supply and equipment capacity

Schematic Drawing of Wiring (Example)
[Fig. 9.4.1] (P.4)
A Switch (Breakers for Wiring and Current Leakage)
D Pull Box
Thickness of Wire for Main Power Supply and On/Off Capacities
Minimum Wire Thickness (mm
Model
Main Cable
200
Outdoor
4.0
Unit
250
4.0
Indoor Unit
1.5
1. Use a separate power supply for the outdoor unit and indoor unit.
2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.
3. The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker consideration of voltage drops.
Make sure the power-supply voltage does not drop more than 10 %.
4. Specific wiring requirements should adhere to the wiring regulations of the region.
5. Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord (design 245 IEC57). For example,
use wiring such as YZW.
6. A switch with at least 3 mm contact separation in each pole shall be provided by the Air conditioner installation.
Warning:
Be sure to use specified wires to connect so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause
heating or fire.
Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.
Caution:
Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker is installed, it may cause an electric shock.
Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity may cause a malfunction
of unit or fire.
Use the most recent address within the same group of indoor units
Use an address, other than that of the IC (Main) from among the units within the same group of indoor units. This must be
in sequence with the IC (Main)
Use the most recent address of all the indoor units plus 50
Set at an IC (Main) address within the same group plus 100
Set at an IC (Main) address within the same group plus 150
Unnecessary address setting (Necessary main/sub setting)
+L
+L
and L
+L
+L
+L
and L
+L
2
3
4
1
2
3
5
1
and L
+L
and L
+L
and L
and L
1
3
4
3
5
6
2
, r
, r
, r
10 m (0.3 to 1.25 mm
=
1
2
3
4
+L
+L
+L
and L
+L
+L
1
2
3
4
1
2
and L
+L
and L
and L
1
3
4
6
+c
and c
+c
+c
+c
200 m (0.3 to 1.25 mm
=
1
2
1
2
3
4
B Breakers for Current Leakage
E Indoor Unit
2
)
Branch
Ground
4.0
4.0
1.5
1.5
Setting Method
+L
+L
500 m (1.25 mm
2
or more)
=
2
6
7
2
+L
and L
=
200 m (1.25 mm
or more)
6
7
2
)
2
shielded wire. The length of this section (L
+L
500 m (1.25 mm
2
or more)
=
6
7
+L
and L
200 m (1.25 mm
2
or more)
=
2
6
7
2
)
Switch (A)
Breaker for
Capacity
Fuse
Wiring (NFB)
25
25
32
32
16
16
) should be included in the calculation of the
8
C Outdoor Unit
Breaker for Current Leakage
30 A
30 A 100 mA 0.1sec. or less
30 A
30 A 100 mA 0.1sec. or less
20 A
20 A 30 mA 0.1sec. or less
13

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Puhy-p250-yrem-a

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